Abstract: The present application provides a preparation method for a core-shell structured tungsten/gadolinium oxide functional fiber for X and ? ray protection, comprising: first preparing a core-shell structured tungsten/gadolinium oxide powder; preparing a W@Gd2O3/PP blended melt from the powder; and preparing a W@Gd2O3/PP composite fiber from the blended melt. The core-shell structured tungsten/gadolinium oxide functional fiber prepared by the method can play a role in synergistic protection in the aspect of radiation protection, eliminate a weak protection area, and effectively absorb secondary radiation generated by radiation. Secondly, the prepared functional fiber has the characteristics of no lead and light weight, and has good application prospects in the aspect of X and ? ray radiation protection.

Abstract: A wind power generation device, comprising a base (1), a wind concentrating tower (2), a vertical generator (3), a vertical spiral turbine (4), a turbine air inlet duct (5), a trumpet-shaped wind pushing duct (6) and an umbrella-shaped wind drawing duct (7). The wind concentrating tower concentrates the wind, the trumpet-shaped wind pushing duct pushes the wind, and the umbrella-shaped wind drawing duct draws the wind to form an artificial tornado, generate a low air pressure in the center, and generate a great drawing and pushing force to the turbine, thus driving the vertical spiral turbine to drive the vertical generator to generate power. The wind power generation device achieves wind power generation of large installed capacity.

Abstract: The present invention relates to a method for improving IP fragmentation and transmission of user payload between a User Equipment, UE (10), and a Peer Node, PN (14). The payload is transmitted through a transmission path enabled by at least a first (17,18) and a second (17,18) established tunnel, said tunnels connecting a first (11), (13) and a second (11, 13) node in a Packet Core Network, PCN. The method comprises the steps of: The first node (11,13) fragments (19) at least one received payload packet (15) into fragments (16) on the basis of a minimum Maximum Transmission Unit, MTU, for an upper IP layer of the transmission path. The first node (11,13) encapsulates (20) said fragments at the entry of the first tunnel (17, 18).

Abstract: A wind power generation device, comprising a base (1), a wind concentrating tower (2), a vertical generator (3), a vertical spiral turbine (4), a turbine air inlet duct (5), a trumpet-shaped wind pushing duct (6) and an umbrella-shaped wind drawing duct (7). The wind concentrating tower concentrates the wind, the trumpet-shaped wind pushing duct pushes the wind, and the umbrella-shaped wind drawing duct draws the wind to form an artificial tornado, generate a low air pressure in the center, and generate a great drawing and pushing force to the turbine, thus driving the vertical spiral turbine to drive the vertical generator to generate power. The wind power generation device achieves wind power generation of large installed capacity.

Abstract: The present invention relates to a method for improving IP fragmentation and transmission of user payload between a User Equipment, UE (10), and a Peer Node, PN (14). The payload is transmitted through a transmission path enabled by at least a first (17,18) and a second (17,18) established tunnel, said tunnels connecting a first (11), (13) and a second (11, 13) node in a Packet Core Network, PCN. The method comprises the steps of: The first node (11,13) fragments (19) at least one received payload packet (15) into fragments (16) on the basis of a minimum Maximum Transmission Unit, MTU, for an upper IP layer of the transmission path. The first node (11,13) encapsulates (20) said fragments at the entry of the first tunnel (17, 18).

Abstract: For improved IP fragmentation and transmission, user payload is transmitted through a transmission path enabled by at least a first established tunnel (17,18) and a second (17,18) established tunnel. The tunnels connect a first node (11, 13) and a second (11,13) node in a Packet Core Network (PCN). A method comprises the first node fragmenting (19) at least one received payload packet (15) into fragments (16) on the basis of a minimum Maximum Transmission Unit (MTU) for an upper IP layer of the transmission path; encapsulating (20) the fragments at the entry of the first tunnel, and, determining (21) the MTU for the upper IP layer of the transmission path on the basis of an MTU of a lower IP layer of the transmission path and on the basis of the size of at least one additional tunnel header for the encapsulated fragments (16).

Abstract: The present invention relates to a method for improving IP fragmentation and transmission of user payload between a User Equipment, UE 10, and a Peer Node, PN 14. The payload is transmitted through a transmission path enabled by at least a first 17,18 and a second 17,18 established tunnel, said tunnels connecting a first 11, 13 and a second 11,13 node in a Packet Core Network, PCN. The method comprises the steps of: The first node 11,13 fragments 19 at least one received payload packet 15 into fragments 16 on the basis of a minimum Maximum Transmission Unit, MTU, for an upper IP layer of the transmission path. The first node 11,13 encapsulates 20 said fragments at the entry of the first tunnel 17,18.